<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.9.8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>libcoap: coap_time.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr id="projectrow">
  <td id="projectalign">
   <div id="projectname">libcoap<span id="projectnumber">&#160;4.2.0</span>
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.8 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
  initMenu('',true,false,'search.php','Search');
  $(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(document).ready(function() { init_codefold(0); });
/* @license-end */
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(document).ready(function(){initNavTree('coap__time_8c_source.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>

<div class="header">
  <div class="headertitle"><div class="title">coap_time.c</div></div>
</div><!--header-->
<div class="contents">
<a href="coap__time_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* coap_time.c -- Clock Handling</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> *</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> * Copyright (C) 2015 Olaf Bergmann &lt;bergmann@tzi.org&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * This file is part of the CoAP library libcoap. Please see</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * README for terms of use.</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> */</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="preprocessor">#include &quot;coap_config.h&quot;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="preprocessor">#ifdef HAVE_TIME_H</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="preprocessor">#include &lt;time.h&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="preprocessor">#ifdef HAVE_SYS_TIME_H</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="preprocessor">#include &lt;sys/time.h&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="preprocessor">#ifdef HAVE_UNISTD_H</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="preprocessor">#include &lt;unistd.h&gt;</span>  <span class="comment">/* _POSIX_TIMERS */</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="preprocessor">#ifdef HAVE_WINSOCK2_H</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#include &lt;winsock2.h&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="preprocessor">#include &quot;<a class="code" href="libcoap_8h.html">libcoap.h</a>&quot;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="preprocessor">#include &quot;<a class="code" href="coap__time_8h.html">coap_time.h</a>&quot;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="keyword">static</span> <a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> coap_clock_offset = 0;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#if _POSIX_TIMERS &amp;&amp; !defined(__APPLE__)</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>  <span class="comment">/* _POSIX_TIMERS is &gt; 0 when clock_gettime() is available */</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>  <span class="comment">/* Use real-time clock for correct timestamps in coap_log(). */</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#define COAP_CLOCK CLOCK_REALTIME</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#ifdef HAVE_WINSOCK2_H</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>gettimeofday(<span class="keyword">struct</span> timeval *tp, TIME_ZONE_INFORMATION *tzp) {</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>  (void)tzp;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>  <span class="keyword">static</span> <span class="keyword">const</span> uint64_t s_tUnixEpoch = 116444736000000000Ui64;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>  FILETIME file_time;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>  ULARGE_INTEGER time;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>  uint64_t tUsSinceUnicEpoch;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>  GetSystemTimeAsFileTime( &amp;file_time );</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>  time.LowPart = file_time.dwLowDateTime;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>  time.HighPart = file_time.dwHighDateTime;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>  tUsSinceUnicEpoch = ( time.QuadPart - s_tUnixEpoch ) / 10;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>  tp-&gt;tv_sec = (long)(tUsSinceUnicEpoch / 1000000);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>  tp-&gt;tv_usec = (long)(tUsSinceUnicEpoch % 1000000);</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>}</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="keywordtype">void</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><a class="code hl_function" href="group__clock.html#ga4722a7e40ba99c4d3feba19de1b980be">coap_clock_init</a>(<span class="keywordtype">void</span>) {</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="preprocessor">#ifdef COAP_CLOCK</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>  <span class="keyword">struct </span>timespec tv;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>  clock_gettime(COAP_CLOCK, &amp;tv);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="preprocessor">#else </span><span class="comment">/* _POSIX_TIMERS */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>  <span class="keyword">struct </span>timeval tv;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>  gettimeofday(&amp;tv, NULL);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="preprocessor">#endif </span><span class="comment">/* not _POSIX_TIMERS */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>  coap_clock_offset = tv.tv_sec;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>}</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment">/* creates a Qx.frac from fval */</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="preprocessor">#define Q(frac,fval) ((coap_tick_t)(((1 &lt;&lt; (frac)) * (fval))))</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment">/* number of frac bits for sub-seconds */</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="preprocessor">#define FRAC 10</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment">/* rounds val up and right shifts by frac positions */</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="preprocessor">#define SHR_FP(val,frac) (((val) + (1 &lt;&lt; ((frac) - 1))) &gt;&gt; (frac))</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="keywordtype">void</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><a class="code hl_function" href="group__clock.html#ga350826988e63ff446a2a84034ecdf43d">coap_ticks</a>(<a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> *t) {</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>  <a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> tmp;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="preprocessor">#ifdef COAP_CLOCK</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>  <span class="keyword">struct </span>timespec tv;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>  clock_gettime(COAP_CLOCK, &amp;tv);</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>  <span class="comment">/* Possible errors are (see clock_gettime(2)):</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment">   *  EFAULT tp points outside the accessible address space.</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">   *  EINVAL The clk_id specified is not supported on this system.</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment">   * Both cases should not be possible here.</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment">   */</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>  tmp = <a class="code hl_define" href="net_8c.html#ab7637b4488a03cae08c1115a21c16140">SHR_FP</a>(tv.tv_nsec * <a class="code hl_define" href="net_8c.html#aedd6a61216a54973fc7db5272affee75">Q</a>(FRAC, (<a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a>/1000000000.0)), FRAC);</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="preprocessor">#else </span><span class="comment">/* _POSIX_TIMERS */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>  <span class="comment">/* Fall back to gettimeofday() */</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>  <span class="keyword">struct </span>timeval tv;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>  gettimeofday(&amp;tv, NULL);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>  <span class="comment">/* Possible errors are (see gettimeofday(2)):</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">   *  EFAULT One of tv or tz pointed outside the accessible address space.</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment">   *  EINVAL Timezone (or something else) is invalid.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment">   * Both cases should not be possible here.</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment">   */</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>  tmp = <a class="code hl_define" href="net_8c.html#ab7637b4488a03cae08c1115a21c16140">SHR_FP</a>(tv.tv_usec * <a class="code hl_define" href="net_8c.html#aedd6a61216a54973fc7db5272affee75">Q</a>(FRAC, (<a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a>/1000000.0)), FRAC);</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="preprocessor">#endif </span><span class="comment">/* not _POSIX_TIMERS */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>  <span class="comment">/* Finally, convert temporary FP representation to multiple of</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment">   * COAP_TICKS_PER_SECOND */</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>  *t = tmp + (tv.tv_sec - coap_clock_offset) * <a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a>;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>}</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><a class="code hl_typedef" href="group__clock.html#ga3f27196958c88d1edc17911f5f39ef82">coap_time_t</a></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><a class="code hl_function" href="group__clock.html#gaaa7cb35533d86c8f87eac2ad42de0323">coap_ticks_to_rt</a>(<a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> t) {</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>  <span class="keywordflow">return</span> coap_clock_offset + (t / <a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a>);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>}</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>uint64_t <a class="code hl_function" href="group__clock.html#gaefd1d943d41dc7a8c32188741bad4844">coap_ticks_to_rt_us</a>(<a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> t) {</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>  <span class="keywordflow">return</span> (uint64_t)coap_clock_offset * 1000000 + (uint64_t)t * 1000000 / <a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a>;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>}</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span> </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a> <a class="code hl_function" href="group__clock.html#ga0e2d5d4667e8b7a44c375cdb378b8d1b">coap_ticks_from_rt_us</a>(uint64_t t) {</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>  <span class="keywordflow">return</span> (<a class="code hl_typedef" href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a>)((t - (uint64_t)coap_clock_offset * 1000000) * <a class="code hl_define" href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a> / 1000000);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>}</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="preprocessor">#undef Q</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="preprocessor">#undef FRAC</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="preprocessor">#undef SHR_FP</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="preprocessor">#else </span><span class="comment">/* HAVE_TIME_H */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment">/* make compilers happy that do not like empty modules */</span></div>
<div class="foldopen" id="foldopen00132" data-start="{" data-end="}">
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"><a class="line" href="coap__time_8c.html#ab9fb12579dacfae8e5a2a11d2d021bdd">  132</a></span><a class="code hl_define" href="libcoap_8h.html#a58b4446dccd0b8c21b3532ef6b77a57d">COAP_STATIC_INLINE</a> <span class="keywordtype">void</span> <a class="code hl_function" href="coap__time_8c.html#ab9fb12579dacfae8e5a2a11d2d021bdd">dummy</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>{</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>}</div>
</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="preprocessor">#endif </span><span class="comment">/* not HAVE_TIME_H */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span> </div>
<div class="ttc" id="acoap__time_8c_html_ab9fb12579dacfae8e5a2a11d2d021bdd"><div class="ttname"><a href="coap__time_8c.html#ab9fb12579dacfae8e5a2a11d2d021bdd">dummy</a></div><div class="ttdeci">COAP_STATIC_INLINE void dummy(void)</div><div class="ttdef"><b>Definition</b> <a href="coap__time_8c_source.html#l00132">coap_time.c:132</a></div></div>
<div class="ttc" id="acoap__time_8h_html"><div class="ttname"><a href="coap__time_8h.html">coap_time.h</a></div><div class="ttdoc">Clock Handling.</div></div>
<div class="ttc" id="agroup__clock_html_ga0e2d5d4667e8b7a44c375cdb378b8d1b"><div class="ttname"><a href="group__clock.html#ga0e2d5d4667e8b7a44c375cdb378b8d1b">coap_ticks_from_rt_us</a></div><div class="ttdeci">coap_tick_t coap_ticks_from_rt_us(uint64_t t)</div><div class="ttdoc">Helper function that converts POSIX wallclock time in us to coap ticks.</div></div>
<div class="ttc" id="agroup__clock_html_ga350826988e63ff446a2a84034ecdf43d"><div class="ttname"><a href="group__clock.html#ga350826988e63ff446a2a84034ecdf43d">coap_ticks</a></div><div class="ttdeci">void coap_ticks(coap_tick_t *t)</div><div class="ttdoc">Sets t to the internal time with COAP_TICKS_PER_SECOND resolution.</div></div>
<div class="ttc" id="agroup__clock_html_ga3f27196958c88d1edc17911f5f39ef82"><div class="ttname"><a href="group__clock.html#ga3f27196958c88d1edc17911f5f39ef82">coap_time_t</a></div><div class="ttdeci">time_t coap_time_t</div><div class="ttdoc">CoAP time in seconds since epoch.</div><div class="ttdef"><b>Definition</b> <a href="coap__time_8h_source.html#l00090">coap_time.h:90</a></div></div>
<div class="ttc" id="agroup__clock_html_ga4722a7e40ba99c4d3feba19de1b980be"><div class="ttname"><a href="group__clock.html#ga4722a7e40ba99c4d3feba19de1b980be">coap_clock_init</a></div><div class="ttdeci">void coap_clock_init(void)</div><div class="ttdoc">Initializes the internal clock.</div></div>
<div class="ttc" id="agroup__clock_html_ga97ff1502e211b4ee6c3f15a598833438"><div class="ttname"><a href="group__clock.html#ga97ff1502e211b4ee6c3f15a598833438">coap_tick_t</a></div><div class="ttdeci">uint64_t coap_tick_t</div><div class="ttdoc">This data type represents internal timer ticks with COAP_TICKS_PER_SECOND resolution.</div><div class="ttdef"><b>Definition</b> <a href="coap__time_8h_source.html#l00085">coap_time.h:85</a></div></div>
<div class="ttc" id="agroup__clock_html_gaaa7cb35533d86c8f87eac2ad42de0323"><div class="ttname"><a href="group__clock.html#gaaa7cb35533d86c8f87eac2ad42de0323">coap_ticks_to_rt</a></div><div class="ttdeci">coap_time_t coap_ticks_to_rt(coap_tick_t t)</div><div class="ttdoc">Helper function that converts coap ticks to wallclock time.</div></div>
<div class="ttc" id="agroup__clock_html_gabf672e8aaf725f9ccbc4fc0aa202a5bb"><div class="ttname"><a href="group__clock.html#gabf672e8aaf725f9ccbc4fc0aa202a5bb">COAP_TICKS_PER_SECOND</a></div><div class="ttdeci">#define COAP_TICKS_PER_SECOND</div><div class="ttdoc">Use ms resolution on POSIX systems.</div><div class="ttdef"><b>Definition</b> <a href="coap__time_8h_source.html#l00100">coap_time.h:100</a></div></div>
<div class="ttc" id="agroup__clock_html_gaefd1d943d41dc7a8c32188741bad4844"><div class="ttname"><a href="group__clock.html#gaefd1d943d41dc7a8c32188741bad4844">coap_ticks_to_rt_us</a></div><div class="ttdeci">uint64_t coap_ticks_to_rt_us(coap_tick_t t)</div><div class="ttdoc">Helper function that converts coap ticks to POSIX wallclock time in us.</div></div>
<div class="ttc" id="alibcoap_8h_html"><div class="ttname"><a href="libcoap_8h.html">libcoap.h</a></div></div>
<div class="ttc" id="alibcoap_8h_html_a58b4446dccd0b8c21b3532ef6b77a57d"><div class="ttname"><a href="libcoap_8h.html#a58b4446dccd0b8c21b3532ef6b77a57d">COAP_STATIC_INLINE</a></div><div class="ttdeci">#define COAP_STATIC_INLINE</div><div class="ttdef"><b>Definition</b> <a href="libcoap_8h_source.html#l00038">libcoap.h:38</a></div></div>
<div class="ttc" id="anet_8c_html_ab7637b4488a03cae08c1115a21c16140"><div class="ttname"><a href="net_8c.html#ab7637b4488a03cae08c1115a21c16140">SHR_FP</a></div><div class="ttdeci">#define SHR_FP(val, frac)</div></div>
<div class="ttc" id="anet_8c_html_aedd6a61216a54973fc7db5272affee75"><div class="ttname"><a href="net_8c.html#aedd6a61216a54973fc7db5272affee75">Q</a></div><div class="ttdeci">#define Q(frac, fval)</div><div class="ttdoc">creates a Qx.frac from fval in coap_fixed_point_t</div><div class="ttdef"><b>Definition</b> <a href="net_8c_source.html#l00078">net.c:78</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="coap__time_8c.html">coap_time.c</a></li>
    <li class="footer">Generated on Fri Dec 27 2024 09:57:44 for libcoap by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 </li>
  </ul>
</div>
</body>
</html>
